Germaria. 439 



anterodorsal bristles on hind tibiæ few and large. Wings a little yel- 

 lowish; veins yellow to brown; cubital vein doubly ourved; discai 

 angle with a very short veinlet; apical cross- vein concave; first 

 posterior cell closed just at margin; cubital vein with bristles towards 

 or to medial cross- vein; radial vein sometimes with one or a couple 

 of bristles. Squamulæ white. Halteres brown. 



Female. Quite similar, third antennal joint a little shorter. 



Length 6 to about 9 mm. 



G. angustata is not common in Denmark; Tisvilde in some 

 numbers (I.C.Nielsen); in Jutland at Silkeborg (Drewsen), on Læsø 

 and on Bornholm at Hasle (H. J. Hansen); the dates are ^/g — '^j^. 

 The species frequents especially sandy shores and downs, but no 

 host is known. 



Geographical distribution : — Europe down into Greece ; towards 

 the north to southern Sweden. 



Remarks: I have examined Zetterstedt's types to Gonia angu- 

 stata and T. lugubrina; angustata is rather large specimens while 

 lugubrina is somewhat small; the latter has the third antennal joint 

 in the male rather broadened towards apex, but it looks somewhat 

 abnormally dilated; otherwise the species are quite conform, and I 

 have no doubt that they are identical. The Danish specimen of 

 T. lugubrina mentioned by Zetterstedt 1. c. VIII is in our collection, 

 and it is likewise the present species. Zetterstedt says that the Danish 

 species differs from his lugubrina by: "abdominis cingulis glauco- 

 albis 2, nec 5", but this is an error as he in the description of lugu- 

 brina only speaks of 3 bands on abdomen; the other characters he 

 mentions are of no value. Stein, who has seen our specimen, came 

 to the same result. 



2. G. ruficeps Fall. 



1820. Fall. Dipt. Suec. Muse. 4, 3 {Tachina). — 1826. Meig. Syst. Beschr. 

 V, 5, 8, et 1830. VI, 373 (Gonia) et 1838. VII, 247, 1, Tab. LXXI, Fig. 16—20 

 {Illigera). — 1844. Zett. Dipt. Scand. III, 1197, 6 (Gonia). — 1862. Schin. F. A. I, 

 441. — 1889. B. B. Denkschr. Akad. Wiss. Wien, LVI, 99, Tab. IV, Fig. 71. — 

 1907. Kat. palåarkt. Dipt. III, 360. — 1921. Baer, Zeitschr. f. angew. Ent. VII, 

 361. — 1924. Stein, Arch. f. Naturgesch. 90, 6, 117. 



Male. Frons above more than double as broad as the eye, strongly 

 protruding and epistoma strongly retreating; cheeks very broad, 

 and jowls nearly as broad as the height of the eye. Orbits reddish, 

 grey just above, downwards somewhat yellowish pruinose; cheeks 



